Article (Scientific journals)
An effective organic waste recycling through vermicomposting technology for sustainable agriculture in tropics
Liegui, Ginette Sandrine; Cognet, Stéphane; Djumyom, Guy Valerie Wafo et al.
2021In International Journal of Recycling of Organic Waste in Agriculture, 10 (3), p. 203 - 214
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Keywords :
Agricultural inputs; Epigeic earthworms; Maturation; Phytotoxicity; Vermicomposting; Waste management; Agricultural and Biological Sciences (miscellaneous); Waste Management and Disposal
Abstract :
[en] Purpose The management of household wastes has been a real challenge for the capital city of Cameroon for some years now. In order to adopt ecological and sustainable strategies for better management of organic fraction of solid wastes, the present work was aimed to propose a sustainable alternative for the recycling of household organic waste through a vermicomposting process. Method A vermicomposting of household organic waste was carried out during 46 days, preceded by 23 days of pre-composting. Then, three treatments were established by mixing epigeic earthworms with different proportion of pre-composted waste. Maturation parameters such as pH, electrical conductivity (EC), C/N ratio, ammonium (N-NH4+ ) and total organic matter (TOM) were monitored about four weeks. The agronomic quality of the vermicompost was also determined at the end. Results During pre-composting, the temperature reached a maximum of 54.3±5.4°C suitable for the elimination of potential pathogen. The pH varied between 9.44 and 8.53 leading towards neutrality at the end of the vermi-composting process. The obtained mean values of C/N ratio and the TOM were respectively 11.04-11.68 and 25.82-27.19% in line with the AFNOR (NFU 44-051) guideline. The obtained vermicompost revealed high levels of nutrients such as N, P, K, Ca and Mg. The phytotoxicity test on lettuce showed germination rates above 50%, revealing the non-toxic nature of the vermicompost produced. Conclusion The vermicompost were rich in nutrients and exhibited the non-phytotoxicity. Thus, vermicomposting can be applied in the context of Cameroon to transform organic waste into organic fertiliser suitable for sustainable agriculture.
Disciplines :
Agriculture & agronomy
Author, co-author :
Liegui, Ginette Sandrine ;  Université de Liège - ULiège
Cognet, Stéphane;  Haute École Charlemagne-Département Agronomique, unité d’horticulture, Gembloux, Belgium
Djumyom, Guy Valerie Wafo;  Research unit on Applied Botany, University of Dschang, Cameroon
Atabong, Paul Agendia;  Laboratory of Plant Biotechnology and Environment, Department of Plant Biology, University of Yaounde, Cameroon
Noutadié, Jean Pierre Fankem;  Laboratory of Plant Biotechnology and Environment, Department of Plant Biology, University of Yaounde, Cameroon
Chamedjeu, Rostand Roméo;  Department of Molecular Biology and Biotechnology, Pan African University and Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
Temegne, Carine Nono;  Laboratory of Plant Biotechnology and Environment, Department of Plant Biology, University of Yaounde, Cameroon
Kengne, Ives Magloire Noumsi;  Laboratory of Plant Biotechnology and Environment, Department of Plant Biology, University of Yaounde, Cameroon
Language :
English
Title :
An effective organic waste recycling through vermicomposting technology for sustainable agriculture in tropics
Publication date :
June 2021
Journal title :
International Journal of Recycling of Organic Waste in Agriculture
ISSN :
2195-3228
eISSN :
2251-7715
Publisher :
Islamic Azad University
Volume :
10
Issue :
3
Pages :
203 - 214
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
cherche et de l’Enseignement Supérieur de Wallonie-Bruxelles (ARES) for the financial support and the Laboratory of Plant Biotechnology and Environment of the University de Yaounde 1 for the technical support.
Available on ORBi :
since 25 August 2022

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